Gemü 567 BioStar control Betriebsanleitung Seite 78

12 Inspection and maintenance
12.2.2 Mounting the regulating cone
6
9
5
2
20
3
If when removing the regulating cone 3 the plug diaphragm 2,
the adjustable insert 5 and the spring washers 9 are
loosened, these must be placed back in the correct position
before mounting the regulating cone 3!
4
3
1. Mount the O-ring 4 on the regulating cone 3.
20
3
2. Wet the thread of the regulating cone 3 with suitable
thread locking compound (e.g. WEICONLOCK AN 301-65).
3. Screw the regulating cone 3 into the support ring 20 until
it is hand tight.
GEMÜ 567
20
3
4. Hold the support ring 20 in place and secure the regulat-
ing cone 3 using the assembly tool and hand-tighten it.
ð Do not damage the regulating cone surface in the pro-
cess.
6
11
2
20
3
5. Screw the support ring 20 to the valve spindle 6 and
hand-tighten it.
ð Where necessary, wet the thread of the valve spindle 6
with suitable thread locking compound (e.g. WEICON-
LOCK AN 301-65).
6
11
2
20
4
3
6. Position a WAF 16 open-end wrench on the regulating
cone 3. Simultaneously, position a WAF 8 open-end
wrench on the wrench surface of the valve spindle 6. By
counterholding both open-end wrenches, carefully bolt
the support ring 20 with the regulating cone 3 to the valve
spindle 6 (tightening torque: 7-9 Nm).
7. Place the distance piece 11 onto the valve body 1.
8. Place washers 17 and cap nuts 18 on stud bolts 16 and
position by hand.
9. Tighten cap nuts 18 diagonally (tightening torque: 16–
20 Nm).
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